Commit Graph

11699 Commits

Author SHA1 Message Date
Chris Lattner
e8cabf3c2e add a new SDNPVariadic SDNP node flag, and use it in
dag isel gen instead of instruction properties.  This
allows the oh-so-useful behavior of matching a variadic
non-root node.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98934 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19 05:07:09 +00:00
Daniel Dunbar
8ad0dccbf2 MC/Mach-O/x86_64: Add getAtom[ForAddress].
- These find the defining symbol which identifies the containing atom for a symbol or address. They are currently very slow, but will be eliminated eventually.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98925 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19 03:18:15 +00:00
Daniel Dunbar
2386985663 MC/Mach-O: Factor out isSymbolLinkerVisible method; "linker visible" is a made up term to refer to non-temporary labels + temporary labels in sections-which-require symbols. For Darwin, it corresponds to symbols which effectively define an atom.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98923 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19 03:18:09 +00:00
Chris Lattner
09a2769a7f use ins/outs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98867 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-18 20:55:31 +00:00
Daniel Dunbar
8cc9c0c487 MC/AsmMatcher: Add support for target specific "instruction cleanup" functions,
to allow custom post-processing of matched instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98857 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-18 20:05:56 +00:00
Dan Gohman
debbef20ee offsetof always has type size_t.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98854 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-18 19:37:35 +00:00
Benjamin Kramer
d720712f67 Fix a name clash that was breaking MSVC builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98852 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-18 19:34:06 +00:00
Dan Gohman
aea1b501ce Explicitly cast std::min's arguments to avoid type mismatches.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98851 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-18 19:01:12 +00:00
Dan Gohman
9553188fcc Define placement new wrappers for BumpPtrAllocator and
RecyclingAllocator to allow client code to be simpler, and
simplify several clients.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98847 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-18 18:49:47 +00:00
Bob Wilson
d1ec31dca5 Fix pr6543: svn r88806 changed MachineJumpTableInfo::getJumpTableIndex() to
always create a new jump table.  The intention was to avoid merging jump
tables in SelectionDAGBuilder, and to wait for the branch folding pass to
merge tables.  Unfortunately, the same getJumpTableIndex() method is also
used to merge tables in branch folding, so as a result of this change
branch tables are never merged.  Worse, the branch folding code is expecting
getJumpTableIndex to always return the index of an existing table, but with
this change, it never does so.  In at least some cases, e.g., pr6543, this
creates references to non-existent tables.

I've fixed the problem by adding a new createJumpTableIndex function, which
will always create a new table, and I've changed getJumpTableIndex to only
look at existing tables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98845 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-18 18:42:41 +00:00
Dan Gohman
74cdc75313 Fix a bug found by inspection; in the __GNUC__ code, the alignment
doesn't apply to the type, only to the variable, so subsequent uses
of U which expect it to be aligned weren't actually aligned.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98843 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-18 18:40:47 +00:00
Andrew Lenharth
8bba4dd9bc Nick wants these alphabetized
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98840 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-18 18:18:00 +00:00
Dan Gohman
c93b4cff89 Add the ability to "intern" FoldingSetNodeID data into a
BumpPtrAllocator-allocated region to allow it to be stored in a more
compact form and to avoid the need for a non-trivial destructor call.

Use this new mechanism in ScalarEvolution instead of
FastFoldingSetNode to avoid leaking memory in the case where a
FoldingSetNodeID uses heap storage, and to reduce overall memory
usage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98829 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-18 16:16:38 +00:00
Dan Gohman
f9e64729af Reapply r98755 with a thinko which miscompiled gengtype fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98793 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-18 01:17:13 +00:00
Daniel Dunbar
9a1d20042f MCValue: Change to holding MCSymbolRefExprs instead of MCSymbols, we will need this for accessing to symbol modifiers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98791 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-18 00:59:10 +00:00
Daniel Dunbar
daf9733369 Add MCSymbol::isInSection.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98790 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-18 00:59:02 +00:00
Daniel Dunbar
0682951b4f MC/Darwin: Add a new target hook for whether the target uses "reliable" symbol differences, basically whether the assembler should attempt to understand atoms when using scattered symbols.
Also, avoid some virtual call overhead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98789 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-18 00:58:53 +00:00
Dan Gohman
ebf78f18df Revert 98755, which may be causing trouble.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98762 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-17 19:54:53 +00:00
Dan Gohman
0afc29c3e6 Change SCEVNAryExpr's operand array from a SmallVector to a plain
pointer and length, and allocate the arrays in ScalarEvolution's
BumpPtrAllocator, so that they get released when their owning
SCEV gets released. SCEVs are immutable, so they don't need to worry
about operand array resizing. This fixes a memory leak reported
in PR6637.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98755 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-17 18:51:01 +00:00
Bob Wilson
f9cf8b35bb Remove an unnecessary (and misspelled) typedef. Tweak whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98753 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-17 18:43:25 +00:00
Andrew Lenharth
7e1b037edd missing include
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98752 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-17 18:33:00 +00:00
Chris Lattner
77e7694026 fix GetOrCreateTemporarySymbol to require a name, clients
should use CreateTempSymbol() if they don't care about the
name.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98712 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-17 05:41:18 +00:00
Chris Lattner
b095ba439d remove dead variable, patch by Nathan Howell!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98704 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-17 01:45:17 +00:00
Chris Lattner
730f743c01 work around an MSVC2010 bug, PR6504
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98653 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-16 19:07:05 +00:00
Gabor Greif
138acfe353 fix PR6589
adjusted unittest

I have added some doxygen to OptionalOperandTraits,
so hopefully there will be no confusion in the future.

Incidentally OptionalOperandTraits is not used any more (IIUC),
but the obvious client would be BranchInstr, and I plan
to rearrange it that way.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98624 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-16 10:59:48 +00:00
Chris Lattner
999aee24c7 Fix the third (and last known) case of code update problems due
to LLVM IR changes with addr label weirdness.  In the testcase, we
generate references to the two bb's when codegen'ing the first
function:

_test1:                                 ## @test1
	leaq	Ltmp0(%rip), %rax
..
	leaq	Ltmp1(%rip), %rax

Then continue to codegen the second function where the blocks
get merged.  We're now smart enough to emit both labels, producing
this code:

_test_fun:                              ## @test_fun
## BB#0:                                ## %entry
Ltmp1:                                  ## Block address taken
Ltmp0:
## BB#1:                                ## %ret
	movl	$-1, %eax
	ret

Rejoice.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98595 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-16 00:29:39 +00:00
Daniel Dunbar
4e815f8a8c MC: Allow modifiers in MCSymbolRefExpr, and eliminate X86MCTargetExpr.
- Although it would be nice to allow this decoupling, the assembler needs to be able to reason about MCSymbolRefExprs in too many places to make this viable. We can use a target specific encoding of the variant if this becomes an issue.
 - This patch also extends llvm-mc to support parsing of the modifiers, as opposed to lumping them in with the symbol.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98592 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-15 23:51:06 +00:00
Daniel Dunbar
d6e59084d0 MC/Mach-O/x86_64: Temporary labels in cstring sections require symbols (and external relocations, but we don't have x86_64 relocations yet).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98583 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-15 21:56:50 +00:00
Daniel Dunbar
99d22adcad MC/Mach-O: Add MCSectionMachO::getType()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98582 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-15 21:56:38 +00:00
Chris Lattner
9cc0da9c29 Implement support for the case when a reference to a addr-of-bb
label is generated, but then the block is deleted.  Since the
value is undefined, we just emit the label right after the entry 
label of the function.  It might matter that the label is in the
same section as the function was afterall.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98579 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-15 20:39:00 +00:00
Douglas Gregor
1bb30b6f75 Extend MemoryBuffer::getFile() to take an optional "stat" structure
pointer. If given, the structure will be set with the stat information from
the file actually read.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98575 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-15 20:32:14 +00:00
Chris Lattner
0220ba7995 Fix the case when a reference to an address taken BB is emitted in one
function, then the BB is RAUW'd before the definition is emitted.  There
are still two cases not being handled, but this should improve us back to
the situation before I touched anything.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98566 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-15 19:09:43 +00:00
Jeffrey Yasskin
ad181304e1 Don't save a temporary string into a StringRef field.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98538 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-15 06:59:21 +00:00
Chris Lattner
1f8008cf21 fix MCSectionELF to not leak memory, just like I did for MCSymbol.
MCSectionMachO is already fine (yay for fixed size arrays?),
MCSectionCOFF still leaks.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98537 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-15 06:23:52 +00:00
Chris Lattner
c28cc093e3 fix a memory leak yjasskin pointed out: MCSymbol is bump pointer
allocated and thus not freed.  This is cool except that it contains
and std::string so the string data didn't get freed.  In any case
there is no reason to redundantly store the string data in the 
MCSymbol anyway, just make the MCSymbol ref the string data in the
MCContext StringMap.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98536 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-15 06:15:35 +00:00
Chris Lattner
6894b07996 MachineMove ctor doesn't need to to mutate input, add 'const'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98533 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-15 05:55:35 +00:00
Jeffrey Yasskin
f28411f732 Tell Valgrind when we modify already-executed machine code so it knows
to re-instrument the code.  We depend on the system valgrind.h to
avoid adding a new license.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98529 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-15 04:57:55 +00:00
Chris Lattner
a833f6b061 remove dead method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98526 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-15 00:00:42 +00:00
Duncan Sands
d2c817eff1 Turn calls to copysignl into an FCOPYSIGN node. Handle FCOPYSIGN nodes
with ppc_f128 type by having the type legalizer turn these back into a
call to copysignl.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98514 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14 21:08:40 +00:00
Anton Korobeynikov
927411b7ce Make default expansion for FP16 <-> FP32 nodes into libcalls
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98501 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14 18:42:24 +00:00
Anton Korobeynikov
be5b032e4b Add DAG nodes to represent FP16 <-> FP32 intrinsics
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98500 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14 18:42:15 +00:00
Anton Korobeynikov
feacf28cf8 Cleanup
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98499 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14 18:42:08 +00:00
Anton Korobeynikov
675043b19d The fp16 <-> fp32 intrinsics are pure, mark them so they can be CSE'd, etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98498 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14 18:42:04 +00:00
Anton Korobeynikov
676f968fec Add intrinsics to represent fp16 <-> fp32 conversions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98497 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14 18:41:50 +00:00
Chris Lattner
3b9d6216a4 fix AsmPrinter::GetBlockAddressSymbol to always return a unique
label instead of trying to form one based on the BB name (which
causes collisions if the name is empty).  This fixes PR6608


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98495 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14 17:53:23 +00:00
Chris Lattner
63d7836267 get MMI out of the label uniquing business, just go to MCContext
to get unique assembler temporary labels.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98489 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14 08:36:50 +00:00
Chris Lattner
1d72a76616 add a new CreateTempSymbol method, the use case for
CreateTempSymbol vs GetOrCreateTemporarySymbol are
completely different.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98486 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14 08:23:30 +00:00
Chris Lattner
2e9919a5e5 Now that DBG_LABEL is updated, we can finally make MachineMove
contain an MCSymbol instead of a label index.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98482 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14 08:12:40 +00:00
Chris Lattner
aba9bcb9b6 switch GC_LABEL to use an MCSymbol operand instead of a label ID operand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98474 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14 07:27:07 +00:00
Chris Lattner
7561d48095 change the LabelSDNode to be EHLabelSDNode and make it hold
an MCSymbol.  Make the EH_LABEL MachineInstr hold its label
with an MCSymbol instead of ID.  Fix a bug in MMI.cpp which
would return labels named "Label4" instead of "label4".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98463 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14 02:33:54 +00:00
Chris Lattner
18589de9b1 eliminate InvalidateLabel and LabelIDList from MMI and replace
them with a counter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98462 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14 02:24:55 +00:00
Chris Lattner
b91306053d use Label->isDefined() instead of isLabelDeleted() now that we
consistently use MCSymbol and only call this predicate after
they should have been emitted.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98461 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14 02:20:58 +00:00
Chris Lattner
1611273351 change EH related stuff (other than EH_LABEL) to use MCSymbol
instead of label ID's.  This cleans up and regularizes a bunch 
of code and makes way for future progress.

Unfortunately, this pointed out to me that JITDwarfEmitter.cpp
is largely copy and paste from DwarfException/MachineModuleInfo
and other places.  This is very sad and disturbing. :(

One major change here is that TidyLandingPads moved from being
called in DwarfException::BeginFunction to being called in
DwarfException::EndFunction.  There should not be any 
functionality change from doing this, but I'm not an EH expert.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98459 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-14 01:41:15 +00:00
Chris Lattner
1b2eb0e8a6 eliminate the now-unneeded context argument of MBB::getSymbol()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98451 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-13 21:04:28 +00:00
Chris Lattner
11d53c129f rearrange MCContext ownership. Before LLVMTargetMachine created it
and passing off ownership to AsmPrinter.  Now MachineModuleInfo
creates it and owns it by value.  This allows us to use MCSymbols
more consistently throughout the rest of the code generator, and
simplifies a bit of code.  This also allows MachineFunction to 
keep an MCContext reference handy, and cleans up the TargetRegistry
interfaces for AsmPrinters.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98450 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-13 20:55:24 +00:00
Chris Lattner
3889fac428 add builder support for mcsymbol operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98434 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-13 08:16:25 +00:00
Chris Lattner
72aaa3c798 add support for MCSymbols as operands to MachineInstrs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98433 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-13 08:14:18 +00:00
Benjamin Kramer
669f6b3bee Add some parens and silence a warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98428 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-13 07:40:34 +00:00
Daniel Dunbar
5e6a7a248b llvm-mc: Support -n, useful for comparing -integrated-as output since the
compiler may not lead with the text section.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98418 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-13 02:20:57 +00:00
Jeffrey Yasskin
6f555ca2cd Delete MDNodes when LLVMContext is destroyed. Previous attempts: r97918, r97788.
Tested: clang debug bootstrap, llvm-gcc bootstrap, `make check-lit`
after configuring with --with-llvmgccdir (and this did run the
FrontendC* tests this time)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98410 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-13 01:26:15 +00:00
Devang Patel
f96769bed2 Remove extra parameter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98403 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-13 00:45:31 +00:00
Devang Patel
cbd056074c Do not overestimate code size reduction in presense of debug info.
Use CodeMetrics.analyzeBasicBlock() to estimate BB size.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98401 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-13 00:10:20 +00:00
Daniel Dunbar
f08fde41f3 MC/Mach-O: Implement initial support for relaxation.
- The implementation is currently very brain dead and inefficient, but I have a
   clear plan on how to fix it.

 - The good news is, it works and correctly assembles 403.gcc (when built with
   Clang, at '-Os', '-Os -g', and '-O3'). Even better, at '-Os' and '-Os -g',
   the resulting binary is exactly equivalent to that when built with the system
   assembler. So it probably works! :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98396 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 22:07:14 +00:00
Chris Lattner
d62f1b4168 inline GetGlobalValueSymbol into the rest its callers and
remove it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98390 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 21:19:23 +00:00
Chris Lattner
b6fc4a5650 eliminate the X86 version of GetGlobalValueSymbol, allowing
it to be non-virtual and soon disappear.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98387 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 21:06:41 +00:00
Chris Lattner
8a29fa6e02 move fastcall/stdcall mangling up into Mangler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98384 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 21:03:47 +00:00
Daniel Dunbar
df3c8f2969 MC: Factor out MCAssembler::EvaluateFixup, and simplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98381 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 21:00:49 +00:00
Daniel Dunbar
a0e36d55c4 MC: Constify MCAsmLayout argument to MCExpr::EvaluteAs...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98380 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 21:00:45 +00:00
Daniel Dunbar
8315a357e4 MC: Add MCAssembler::addFixup, which enforces that fixups are added in order.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98379 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 21:00:38 +00:00
Chris Lattner
b87c305fa7 give Mangler access to TargetData.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98378 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 20:47:28 +00:00
Benjamin Kramer
a30b181c20 Add a virtual destructor and give vtable a home.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98376 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 20:41:29 +00:00
Chris Lattner
73ff564d65 finally give Mangler a getSymbol method, which returns an MCSymbol
for a global instead of messing around with string buffers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98366 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 18:55:20 +00:00
Chris Lattner
5ef31a039d make the mangler take an MCContext instead of an MAI.
No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98363 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 18:44:54 +00:00
Chris Lattner
fdab14b105 remove MAI argument from createAsmStreamer since it
can get it from the context now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98361 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 18:28:53 +00:00
Jeffrey Yasskin
5c213dc78c Free DbgScopes in DwarfDebug::endFunction(). Also increased the const-ness of
several fields to make it easier to figure out where bugs might be creeping in.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98358 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 17:45:06 +00:00
Benjamin Kramer
0b6cb50738 Factor checked library call optimization into a common helper class and use it
to unify the almost identical code in CodeGenPrepare and InstCombineCalls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98338 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 09:27:41 +00:00
Chris Lattner
f789d26f81 make TargetLoweringObjectFile::getExprForDwarfReference
just make unnamed temp symbols instead of having to come
up with its own names.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98324 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 01:56:43 +00:00
Nate Begeman
75d5fe9213 Whoops this already existed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98297 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 23:21:19 +00:00
Nate Begeman
47a53a6e4c Add a handful of additional useful pass manager things to the C API
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98296 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 23:06:07 +00:00
Chris Lattner
c18409aed8 change MCContext to always have an MCAsmInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98293 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 22:53:35 +00:00
Chris Lattner
42263e2e40 fix a fixme in TargetLoweringObjectFile::getExprForDwarfReference
where we used ot create an MCSymbol for ".".  Now emit an assembler
temporary label and reference it instead of "." textually.

rdar://7739457


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98292 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 21:55:20 +00:00
Dan Gohman
a257095ebb Remove getWidenVectorType, which is no longer used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98289 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 21:39:57 +00:00
Benjamin Kramer
7fa30b8e5d stpcpy is so similar to strcpy, it doesn't deserve a complete copy of the __strcpy_chk -> strcpy code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98284 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 20:45:13 +00:00
Chris Lattner
3192d14076 rename getSymbolForDwarf* to getExprForDwarf* since it returns
an MCExpr and not an MCSymbol.  Change it to take an MCStreamer,
which is currently unused.

No functionality change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98278 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 19:41:58 +00:00
Eric Christopher
19888ca8b4 Lower stpcpy_chk when possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98274 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 19:24:34 +00:00
Daniel Dunbar
8f0448cabc MC/Mach-O: Add MCSymbolData::getAddress() utility.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98266 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 18:22:51 +00:00
Richard Osborne
95da605e15 Add a new jump table encoding to indicate jump tables entries
are inside the function by the target at the point of use.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98255 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 14:58:16 +00:00
Evan Cheng
826cbac2a0 The check for coalescing a virtual register to a physical register, e.g.
cl = EXTRACT_SUBREG reg1024, 1, is overly conservative. It should check
for overlaps of vr's live interval with the super registers of the
physical register (ECX in this case) and let JoinIntervals() handle checking
the coalescing feasibility against the physical register (cl in this case).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98251 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 08:20:21 +00:00
Daniel Dunbar
18ff2cced7 MC/Mach-O: Start passing in the basic MCAsmLayout object.
- Also, drop the current location part of AsmLayout, I think I prefer to implement this via explicit symbols.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98240 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 05:53:33 +00:00
Daniel Dunbar
f82f4490b1 MC: Sketch initial MCAsmLayout class, which encapsulates the current layout of an assembly file. The MCAsmLayout is also available for use by MCExpr::EvaluateAs{Absolute,Relocatable}, to allow target specific hooks and "absolutizing" of symbols.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98227 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 02:28:59 +00:00
Daniel Dunbar
18e2c021a9 Fix (unused) RegisterAsmBackend template, clang++ isn't happy about this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98226 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 02:28:52 +00:00
Daniel Dunbar
1f3e445184 MC: Provide MCAssembler with a TargetAsmBackend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98222 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 01:34:27 +00:00
Daniel Dunbar
23ac7c78e4 MC: Sketch some TargetAsmBackend hooks we are going to need.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98221 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 01:34:21 +00:00
Daniel Dunbar
6c27f5e574 MC: Provide the target triple to AsmBackend constructors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98220 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 01:34:16 +00:00
Eric Christopher
bd97376200 Add strncpy libcall creator. Use it when it should be used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98219 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 01:25:07 +00:00
Dale Johannesen
ae47e461eb Make sure HasDebugValue is initialized. This should fix
the buildbot running valgrind.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98216 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 00:52:12 +00:00
Chris Lattner
2968943463 add support, testcases, and dox for the new GHC calling
convention.  Patch by David Terei!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98212 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 00:22:57 +00:00
Bill Wendling
cebae36f57 Add a bit along with the MCSymbols stored in the MachineModuleInfo maps that
indicates that an MCSymbol is external or not. (It's true if it's external.)
This will be used to specify the correct information to add to non-lazy
pointers. That will be explained further when this bit is used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98199 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10 22:34:10 +00:00
Dale Johannesen
bfdf7f3852 Progress towards shepherding debug info through SelectionDAG.
No functional effect yet.  This is still evolving and should
not be viewed as final.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98195 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10 22:13:47 +00:00
Daniel Dunbar
46836a783a MC: Move the backend section and symbol data maps to MCAssembler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98186 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10 20:58:29 +00:00
Daniel Dunbar
d80066eea9 Remove unneeded declarations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98185 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10 20:58:25 +00:00
Dan Gohman
bbf81d8811 Add a DominatorTree argument to isLCSSA so that it doesn't have to
compute a set of reachable blocks for itself each time it is called, which
is fairly frequently.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98179 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10 19:38:49 +00:00
Benjamin Kramer
48ee0bbb72 Remove duplicated code. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98156 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10 16:04:20 +00:00
Chris Lattner
09d53fecfc move three lowering hooks from MAI to TLOF and make one of them
semantic instead of syntactic.  This completes MCization of
darwin/x86[-64]!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98145 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10 07:20:42 +00:00
Chris Lattner
98cdab53c3 set the temporary bit on MCSymbols correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98124 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10 02:25:11 +00:00
Chris Lattner
00685bb5cf eliminate MCContext::CreateSymbol and CreateTemporarySymbol.
Add a new GetOrCreateTemporarySymbol method and a version that
takes a twine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98118 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10 01:29:27 +00:00
Jakob Stoklund Olesen
f7477470d3 Try to keep the cached inliner costs around for a bit longer for big functions.
The Caller cost info would be reset everytime a callee was inlined. If the
caller has lots of calls and there is some mutual recursion going on, the
caller cost info could be calculated many times.

This patch reduces inliner runtime from 240s to 0.5s for a function with 20000
small function calls.

This is a more conservative version of r98089 that doesn't break the clang
test CodeGenCXX/temp-order.cpp. That test relies on rather extreme inlining
for constant folding.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98099 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 23:02:17 +00:00
Jakob Stoklund Olesen
b5a158bab8 Revert r98089, it was breaking a clang test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98094 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 22:43:37 +00:00
Jakob Stoklund Olesen
9e5d87d568 Try to keep the cached inliner costs around for a bit longer for big functions.
The Caller cost info would be reset everytime a callee was inlined. If the
caller has lots of calls and there is some mutual recursion going on, the
caller cost info could be calculated many times.

This patch reduces inliner runtime from 240s to 0.5s for a function with 20000
small function calls.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98089 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 22:17:11 +00:00
Jim Grosbach
dff4b4c5a7 Change the Value argument to eliminateFrameIndex to a type-tagged value. This
is preparatory to having PEI's scavenged frame index value reuse logic
properly distinguish types of frame values (e.g., whether the value is
stack-pointer relative or frame-pointer relative).

No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98086 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 21:45:49 +00:00
Chris Lattner
c608784dc8 reapply r98035:
Now that setStartLabel takes an MCSymbol, we can de-ID'ize
beginScope and RecordSourceLine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98047 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 04:54:43 +00:00
Eric Christopher
ee6414cf04 Speculatively revert r98035. It appears to have caused a set of buildbot
failures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98039 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 02:36:31 +00:00
Chris Lattner
1e233f510c Now that setStartLabel takes an MCSymbol, we can de-ID'ize
beginScope and RecordSourceLine.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98035 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 02:08:02 +00:00
Chris Lattner
a34ec2290f strength reduce MMI::MappedLabel to MMI::isLabelDeleted,
and add a FIXME about how we are eventually going to zap this
lookup table once mc world domination is complete.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98031 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 01:51:43 +00:00
Chris Lattner
23071ce80b inline RemapLabel into its only caller and simplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98029 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 01:29:59 +00:00
Devang Patel
4b945500a5 Start using DIFile. See updated SourceLevelDebugging.html for more information.
This patch updates LLVMDebugVersion to 8.
Debug info descriptors encoded using LLVMDebugVersion 7 is supported.

Corresponding llvmgcc and clang FE commits are required.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98020 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 00:44:10 +00:00
Chris Lattner
6cde3e6e99 add a EmitSymbolValue convenience method to MCStreamer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98017 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 00:39:24 +00:00
Chris Lattner
0d50c7620d move .set generation out of DwarfPrinter into AsmPrinter and
MCize it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98010 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-08 23:58:37 +00:00
Devang Patel
7aa8189706 Introduce DIFile. This will be used to represent header files and source file(s) in debug info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97994 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-08 22:27:22 +00:00
Devang Patel
77bf295dbb Derive DIType from DIScope. This simplifies getContext() where for members the context is a type. This also eliminates need of CompileUnitMaps maintained by dwarf writer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97990 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-08 22:02:50 +00:00
Devang Patel
f17f5ebbdc Remove DbgNode checks in constructor. Debug descriptors are intended to be light weight wrappers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97988 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-08 21:32:10 +00:00
Devang Patel
9dcd6f14f8 isNull() is not used any more.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97979 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-08 21:00:27 +00:00
Devang Patel
3c91b05d2b Avoid using DIDescriptor.isNull().
This is a first step towards eliminating checks in Descriptor constructors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97975 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-08 20:52:55 +00:00
Andrew Lenharth
ccb4f2d813 Iterator traits and swap. closes PR6548 and PR6549
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97974 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-08 20:45:52 +00:00
Devang Patel
0ef3fa6aab Revert r97947.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97963 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-08 19:20:38 +00:00
Devang Patel
d8cc5d5256 Avoid using DIDescriptor.isNull().
This is a first step towards eliminating unncessary constructor checks in light weight DIDescriptor wrappers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97947 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-08 18:25:48 +00:00
Douglas Gregor
1ddcf35b68 Revert r97917, which was causing Clang Debug self-host failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97932 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-08 02:58:37 +00:00
Jeffrey Yasskin
6fec233a1e Roll back r97918 again. Just configuring against llvm-gcc wasn't enough to run
the FrontendC* tests. :(


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97921 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-07 19:26:40 +00:00
Jeffrey Yasskin
92ce42f9fc Reapply r97788 to free MDNodes when the LLVMContext is destroyed. It
bootstraps llvm-gcc this time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97918 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-07 18:46:57 +00:00
Jeffrey Yasskin
9467f0e3bd Roll r97906 forward again, without double-deleting CompileUnit::IndexTyDie.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97917 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-07 17:10:13 +00:00
Tobias Grosser
8f9db4c1d5 Add findNearestCommonDominator() for PostDominators.
Add a missing interface to be able to call findNearestCommonDominator
for a PostDominanceTree. The function itself is already implemented in
DominatorTreeBase. The interface however was only added to the
DominatorTree class, but not the PostDominatorClass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97915 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-07 11:15:04 +00:00
Chris Lattner
acee647b13 Use Other as a sentinel instead of iAny.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97914 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-07 07:45:08 +00:00
Jeffrey Yasskin
8c42ca9374 _2_ gcc crashes, ah, ah, ah...
(Rolling back r97906.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97909 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-07 07:16:49 +00:00
Jeffrey Yasskin
f7399bf929 Avoid leaking CompileUnits and DbgScopes from DwarfDebug. Leaks found by Valgrind!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97906 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-07 06:55:35 +00:00
Chris Lattner
0ddda3b8c6 make APFloat::toString be const.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97883 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-06 19:20:13 +00:00
Rafael Espindola
44f1680cdf Add static methods to handle Linkage Types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97871 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-06 07:22:39 +00:00
Erick Tryzelaar
e623050048 Add a LLVMWriteBitcodeToFD that exposes the raw_fd_ostream options.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97858 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-06 00:30:06 +00:00
Dale Johannesen
06a26637da Add some new bits of debug info handling. No
functional change yet.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97855 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-06 00:03:23 +00:00
Eric Christopher
b6174e3605 Move SimplifyLibCalls's LibCall builders to a separate file so they
can be used in more places.  Add an argument for the TargetData that
most of them need. Update for the getInt8PtrTy() change.  Should be
no functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97844 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05 22:25:30 +00:00
Eric Christopher
e2381787aa Add support for an i8* type accessor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97841 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05 22:21:58 +00:00
Eric Christopher
25ec483cfc Move GetStringLength and helper from SimplifyLibCalls to ValueTracking.
No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97793 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05 06:58:57 +00:00
Jeffrey Yasskin
b71a2fcf5e Revert r97788 because it broke test/FrontendC/2010-02-16-DbgVarScope.c.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97792 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05 06:43:49 +00:00
Jeffrey Yasskin
c8cfa30ca5 Free MDNodes when the LLVMContext is destroyed. Leak found by Valgrind.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97788 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05 05:47:09 +00:00
Mikhail Glushenkov
b5c4239606 Make it not an error to specify -O* options several times.
As in 'llvmc -O2 -O2 test.c'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97787 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05 04:46:39 +00:00
Chris Lattner
2c4afd1d8e inline CannotYetSelectIntrinsic into CannotYetSelect and simplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97690 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04 00:21:16 +00:00
Erick Tryzelaar
4ad188ba8d Expose alignment and stack alignment attributes to llvm-c and ocaml.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97682 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 23:51:25 +00:00
Evan Cheng
67eaa08f2b Move MachineInstrExpressionTrait::getHashValue() out of line so it can skip over only virtual register defs. This matches what isEqual() is doing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97680 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 23:37:30 +00:00
Evan Cheng
05bdcbb1ae Re-apply r97667 but with a little bit of thought put into the patch. This implements a special DenseMapInfo trait for DenseMap<MachineInstr*> that compare the value of the MachineInstr rather than the pointer value. Since the hashing and equality test functions ignore defs it's useful for doing CSE kind optimization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97678 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 23:27:36 +00:00
Dan Gohman
319dfa3fb3 Revert 97667. It broke a bunch of tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97673 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 22:40:03 +00:00
Evan Cheng
a054ae02fd Move DenseMapInfo for MachineInstr* to MachineInstr.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97667 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 21:47:16 +00:00
Evan Cheng
1423c70b8f Add MachineRegisterInfo::hasOneUse and hasOneNonDBGUse.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97663 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 21:18:38 +00:00
Chris Lattner
14c85cbf54 don't use always_inline with gcc 3.4, it has some unimplemented features
and is too old to really care about the performance of the generated 
compiler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97662 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 20:47:12 +00:00
Evan Cheng
a84f3d9a97 TopLevelMap[] reference is a pointer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97661 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 20:46:48 +00:00
Chris Lattner
f1b7c7d476 speed up scope node processing: if the first element of a scope
entry we're about to process is obviously going to fail, don't
bother pushing a scope only to have it immediately be popped.
This avoids a lot of scope stack traffic in common cases.

Unfortunately, this requires duplicating some of the predicate
dispatch.  To avoid duplicating the actual logic I pulled each
predicate out to its own static function which gets used in
both places.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97651 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 07:31:15 +00:00
Chris Lattner
cfe2eab744 introduce a new SwitchTypeMatcher node (which is analogous to
SwitchOpcodeMatcher) and have DAGISelMatcherOpt form it.  This
speeds up selection, particularly for X86 which has lots of 
variants of instructions with only type differences.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97645 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 06:28:15 +00:00
Evan Cheng
506049f29f - Change MachineInstr::isIdenticalTo to take a new option that determines whether it should skip checking defs or at least virtual register defs. This subsumes part of the TargetInstrInfo::isIdentical functionality.
- Eliminate TargetInstrInfo::isIdentical and replace it with produceSameValue. In the default case, produceSameValue just checks whether two machine instructions are identical (except for virtual register defs). But targets may override it to check for unusual cases (e.g. ARM pic loads from constant pools).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97628 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 01:44:33 +00:00
Evan Cheng
9066f4c6fc Ordering forward declarations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97626 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03 01:37:50 +00:00
Erick Tryzelaar
df7df075b7 Add Module functions in place of module providers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97608 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 23:58:54 +00:00
Chris Lattner
6b7f39c895 remove 300 lines of code that is now dead in the MSP430 backend
now that isel handles chains more aggressively.  This also
allows us to make isLegalToFold non-virtual.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97597 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 22:30:08 +00:00
Chris Lattner
d1b7382983 Fix some issues in WalkChainUsers dealing with
CopyToReg/CopyFromReg/INLINEASM.  These are annoying because
they have the same opcode before an after isel.  Fix this by
setting their NodeID to -1 to indicate that they are selected,
just like what automatically happens when selecting things that
end up being machine nodes.

With that done, give IsLegalToFold a new flag that causes it to
ignore chains.  This lets the HandleMergeInputChains routine be
the one place that validates chains after a match is successful,
enabling the new hotness in chain processing.  This smarter
chain processing eliminates the need for "PreprocessRMW" in the
X86 and MSP430 backends and enables MSP to start matching it's
multiple mem operand instructions more aggressively.

I currently #if out the dead code in the X86 backend and MSP 
backend, I'll remove it for real in a follow-on patch.

The testcase changes are:
  test/CodeGen/X86/sse3.ll: we generate better code
  test/CodeGen/X86/store_op_load_fold2.ll: PreprocessRMW was 
      miscompiling this before, we now generate correct code
      Convert it to filecheck while I'm at it.
  test/CodeGen/MSP430/Inst16mm.ll: Add a testcase for mem/mem
      folding to make anton happy. :)




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97596 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 22:20:06 +00:00
Evan Cheng
d5e9e5f221 Allow specialization of ScopedHashTable of non-default DenseMapInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97594 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 22:10:24 +00:00
Erick Tryzelaar
24b3733425 Rename LLVMUseIteratorRef to LLVMUseRef since we don't refer to iterators in llvm-c.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97585 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 20:32:28 +00:00
Evan Cheng
ac1abde05b Swap parameters of isSafeToMove and isSafeToReMat for consistency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97578 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 19:03:01 +00:00
Chris Lattner
82dd3d38d9 Fix the xfail I added a couple of patches back. The issue
was that we weren't properly handling the case when interior
nodes of a matched pattern become dead after updating chain
and flag uses.  Now we handle this explicitly in 
UpdateChainsAndFlags.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97561 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 07:50:03 +00:00
Chris Lattner
3ff1e4db78 factor node morphing out to its own helper method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97558 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 06:55:04 +00:00
Chris Lattner
4a3ac62332 eliminate CodeGen/DAGISelHeader.h, it is empty now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97556 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 06:36:28 +00:00
Chris Lattner
7c306da505 Sink InstructionSelect() out of each target into SDISel, and rename it
DoInstructionSelection.  Inline "SelectRoot" into it from DAGISelHeader.
Sink some other stuff out of DAGISelHeader into SDISel.

Eliminate the various 'Indent' stuff from various targets, which dates
to when isel was recursive.

 17 files changed, 114 insertions(+), 430 deletions(-)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97555 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 06:34:30 +00:00
Chris Lattner
17b4b172eb move some code out of DAGISelHeader up to SelectionDAGISel.h where it
is shared by all targets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97553 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 06:04:12 +00:00
Evan Cheng
c6fe333688 Add skeleton of a machine level cse pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97543 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 02:38:24 +00:00
Evan Cheng
7f05aa72f9 Add count() and lookup() to ScopedHashTable. It might be useful to get information out of the hash table.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97542 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 02:37:33 +00:00
Chris Lattner
c6d7ad3c7d Rewrite chain handling validation and input TokenFactor handling
stuff now that we don't care about emulating the old broken 
behavior of the old isel.  This eliminates the 
'CheckChainCompatible' check (along with IsChainCompatible) which
did an incorrect and inefficient scan *up* the chain nodes which
happened as the pattern was being formed and does the validation
at the end in HandleMergeInputChains when it forms a structural 
pattern.  This scans "down" the graph, which means that it is
quickly bounded by nodes already selected.  This also handles
token factors that get "trapped" in the dag.

Removing the CheckChainCompatible nodes also shrinks the 
generated tables by about 6K for X86 (down to 83K).

There are two pieces remaining before I can nuke PreprocessRMW:
1. I xfailed a test because we're now producing worse code in a 
   case that has nothing to do with the change: it turns out that
   our use of MorphNodeTo will leave dead nodes in the graph
   which (depending on how the graph is walked) end up causing
   bogus uses of chains and blocking matches.  This is really 
   bad for other reasons, so I'll fix this in a follow-up patch.

2. CheckFoldableChainNode needs to be improved to handle the TF.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97539 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 02:22:10 +00:00
Bill Wendling
46ada19645 Remove dead parameter passing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97536 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02 01:55:18 +00:00
Chris Lattner
7a855760b1 remove some functions that were only used by the
old isel generated code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97522 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 23:40:33 +00:00
Chris Lattner
df51247725 remove all but one version of SelectionDAG::MorphNodeTo
(the most general) the others are dead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97511 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 22:20:05 +00:00
Jakob Stoklund Olesen
e5d90416ee Use methods to determine if a LiveInterval is spillable.
Don't accidentally produce unspillable intervals for deeply nested loops.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97496 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 20:59:38 +00:00
Chris Lattner
a9cf19670f remove anders-aa from mainline, it isn't maintained and is
tantalyzing enough that people keep trying to use it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97483 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 19:24:17 +00:00
Chris Lattner
7390eebd49 Accelerate isel dispatch for tables that start with a top-level
OPC_SwitchOpcode to use a table lookup instead of having to go
through the interpreter for this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97469 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 18:47:11 +00:00
Dan Gohman
3f46a3abee Spelling fixes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97453 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 17:49:51 +00:00
Dan Gohman
67d9bf9dc4 Whitespace cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97452 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 17:47:21 +00:00
Dan Gohman
2516d0d7b1 Use Doxygen comment syntax.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97451 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 17:45:15 +00:00
Chris Lattner
fa342faef9 eliminate the CheckMultiOpcodeMatcher code and have each
ComplexPattern at the root be generated multiple times, once
for each opcode they are part of.  This encourages factoring
because the opcode checks get treated just like everything
else in the matcher.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97439 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 07:17:40 +00:00
Chris Lattner
eb66921adb add a new OPC_SwitchOpcode which is semantically equivalent
to a scope where every child starts with a CheckOpcode, but
executes more efficiently.  Enhance DAGISelMatcherOpt to 
form it.

This also fixes a bug in CheckOpcode: apparently the SDNodeInfo
objects are not pointer comparable, we have to compare the
enum name.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97438 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-01 06:59:22 +00:00
Chris Lattner
2a49d57d2d hoist the new isel interpreter out of DAGISelHeader.h
(which gets #included into the middle of each 
target's DAGISel class) into a .cpp file where it is
only compiled once.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97425 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-28 22:37:22 +00:00
Chris Lattner
5310654dc5 change a few opcodes to use VBRs instead of embedding
immediate sizes into the opcode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97423 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-28 22:14:32 +00:00
Chris Lattner
aa6d708028 move all the opcodes out of DAGISelHeader.h (which gets
#included into the middle of each isel class) into a real 
header.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97421 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-28 21:58:42 +00:00
Chris Lattner
623a2e84fb resolve a fixme by using hte new flag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97420 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-28 21:56:16 +00:00
Chris Lattner
ff7fb60f2a enhance the EmitNode/MorphNodeTo operands to take a bit that
specifies whether there is an output flag or not.  Use this
instead of redundantly encoding the chain/flag results in the
output vtlist.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97419 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-28 21:53:42 +00:00
Chris Lattner
21221e357c enhance the new isel to handle the 'node already exists'
case of MorphNodeTo directly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97417 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-28 21:36:14 +00:00
Chris Lattner
9a21500edc use MorphNodeTo instead of SelectNodeTo. SelectNodeTo
is just a silly wrapper around MorphNodeTo.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97416 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-28 20:55:18 +00:00
Chris Lattner
c78f2a3994 enhance the new isel to use SelectNodeTo for most patterns,
even some the old isel didn't.  There are several parts of
this that make me feel dirty, but it's no worse than the
old isel.  I'll clean up the parts I can do without ripping
out the old one next.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97415 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-28 20:49:53 +00:00
John McCall
1e7ad3993d Add an override to StringRef::getAsInteger which parses into an APInt.
It gets its own implementation totally divorced from the (presumably
performance-sensitive) routines which parse into a uint64_t.

Add APInt::operator|=(uint64_t), which is situationally much better than
using a full APInt.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97381 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-28 09:55:58 +00:00
Erick Tryzelaar
8e130b1d0d Add support for global variables in an address space for llvm-c and ocaml.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97377 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-28 09:46:13 +00:00
Erick Tryzelaar
c59286bff1 Add indirect br support to llvm-c and ocaml.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97376 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-28 09:46:06 +00:00
Erick Tryzelaar
46c80e0c56 Add metadata functions to llvm-c and ocaml.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97375 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-28 09:45:59 +00:00
Erick Tryzelaar
19f047f5f6 Add the new builder arthmetic instructions to llvm-c and ocaml.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97372 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-28 05:51:43 +00:00
Erick Tryzelaar
1940dd10dd Add the new union arthmetic instructions to llvm-c and ocaml.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97371 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-28 05:51:33 +00:00
Erick Tryzelaar
abbcc5ee6f Add generic binary op and cast builder functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97370 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-28 05:51:27 +00:00
Bob Wilson
b29d7d2542 Revert r97245 which seems to be causing performance problems.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97366 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-28 05:34:05 +00:00
John McCall
e12b73816b Teach APFloat how to create both QNaNs and SNaNs and with arbitrary-width
payloads.  APFloat's internal folding routines always make QNaNs now,
instead of sometimes making QNaNs and sometimes SNaNs depending on the
type.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97364 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-28 02:51:25 +00:00
Dan Gohman
8772f5041c Add a flag to addPassesToEmit* to disable the Verifier pass run
after LSR, so that clients can opt in.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97357 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-28 00:41:59 +00:00
Dan Gohman
bc9d98b52d The mayHaveSideEffects flag is no longer used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97348 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-27 23:47:46 +00:00
Dale Johannesen
91c38417cf Further constify MDNode* references.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97252 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-26 19:39:56 +00:00
Bob Wilson
8561dcd730 Move the EnableFullLoadPRE flag from a separate command-line option to an
argument of createGVNPass and set it automatically for -O3.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97245 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-26 19:09:47 +00:00
Bob Wilson
60df9077eb Remove unused "NoPRE" parameter in GVN and createGVNPass().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97235 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-26 18:35:19 +00:00
Chris Lattner
00947ee2db fix the matcher in the presence of multiple scopes: we need to save
and restore the entire matcher stack by value.  This is because children
we're testing could do moveparent or other things besides just 
scribbling on additions to the stack.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97212 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-26 07:28:20 +00:00
Chris Lattner
d6c84720df change the scope node to include a list of children to be checked
instead of to have a chained series of scope nodes.  This makes
the generated table smaller, improves the efficiency of the
interpreter, and make the factoring optimization much more 
reasonable to implement.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97160 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-25 19:00:39 +00:00
Chris Lattner
bb82b146e9 remove a dead PatLeaf, I previously changed all uses to use -1 instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97148 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-25 17:39:34 +00:00
Dan Gohman
a5a23046cb Add more information to the getSizeOf comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97140 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-25 15:55:28 +00:00
Dan Gohman
aa9d854b33 Revert r97064. Duncan pointed out that bitcasts are defined in
terms of store and load, which means bitcasting between scalar
integer and vector has endian-specific results, which undermines
this whole approach.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97137 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-25 15:20:39 +00:00
Chris Lattner
60df53e30a rename PushMatcherNode -> ScopeMatcherNode to more accurately
reflect what it does.  Switch the sense of the Next and the Check
arms to be more logical.  No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97093 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-25 01:56:48 +00:00
Chris Lattner
556a1b47e2 fix a bug I introduced by checking the wrong node's VT in OPC_CheckChildXType
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97074 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-24 22:52:52 +00:00
Dan Gohman
c382bc3c0f Make getTypeSizeInBits work correctly for array types; it should return
the number of value bits, not the number of bits of allocation for in-memory
storage.

Make getTypeStoreSize and getTypeAllocSize work consistently for arrays and
vectors.

Fix several places in CodeGen which compute offsets into in-memory vectors
to use TargetData information.

This fixes PR1784.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97064 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-24 22:05:23 +00:00
Chris Lattner
23cfda719e contract movechild+checktype into a new checkchild node, shrinking the
x86 table by 1200 bytes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97053 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-24 20:15:25 +00:00
Dan Gohman
f6d009fb6f Convert a few more backedge-taken count functions to use BackedgeTakenInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97042 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-24 17:31:30 +00:00
Daniel Dunbar
6d8f2ca646 Reapply r97010, the speculative revert failed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97036 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-24 08:48:04 +00:00
Chris Lattner
19b5a7590b implement a simple proof-of-concept optimization for
the new isel: fold movechild+record+moveparent into a
single recordchild N node.  This shrinks the X86 table
from 125443 to 117502 bytes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97031 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-24 07:31:45 +00:00
Daniel Dunbar
8c0c99016b Speculatively revert r97010, "Add an argument to PHITranslateValue to specify
the DominatorTree. ...", in hopes of restoring poor old PPC bootstrap.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97027 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-24 06:55:22 +00:00
Dan Gohman
e832693acb When forming SSE min and max nodes for UGE and ULE comparisons, it's
necessary to swap the operands to handle NaN and negative zero properly.

Also, reintroduce logic for checking for NaN conditions when forming
SSE min and max instructions, fixed to take into consideration NaNs and
negative zeros. This allows forming min and max instructions in more
cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97025 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-24 06:52:40 +00:00
Chris Lattner
02f73585f7 The new isel was not properly handling patterns that covered
internal nodes with flag results.  Record these with a new 
OPC_MarkFlagResults opcode and use this to update the interior
nodes' flag results properly.  This fixes CodeGen/X86/i256-add.ll
with the new isel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97021 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-24 05:33:42 +00:00
Bob Wilson
9d2ed8e632 Add an argument to PHITranslateValue to specify the DominatorTree. If this
argument is non-null, pass it along to PHITranslateSubExpr so that it can
prefer using existing values that dominate the PredBB, instead of just
blindly picking the first equivalent value that it finds on a uselist.
Also when the DominatorTree is specified, have PHITranslateValue filter
out any result that does not dominate the PredBB.  This is basically just
refactoring the check that used to be in GetAvailablePHITranslatedSubExpr
and also in GVN.

Despite my initial expectations, this change does not affect the results
of GVN for any testcases that I could find, but it should help compile time.
Before this change, if PHITranslateSubExpr picked a value that does not
dominate, PHITranslateWithInsertion would then insert a new value, which GVN
would later determine to be redundant and would replace.  By picking a good
value to begin with, we save GVN the extra work of inserting and then
replacing a new value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97010 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-24 01:39:00 +00:00
Chris Lattner
cec479de4e fix X86/uint_to_fp-2.ll, only fold loads when they have a
single use.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97003 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-23 23:47:34 +00:00
Jakob Stoklund Olesen
dcfe5f30b5 Keep track of phi join registers explicitly in LiveVariables.
Previously, LiveIntervalAnalysis would infer phi joins by looking for multiply
defined registers. That doesn't work if the phi join is implicitly defined in
all but one of the predecessors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96994 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-23 22:43:58 +00:00
Wesley Peck
a70f28ce7d Adding the MicroBlaze backend.
The MicroBlaze is a highly configurable 32-bit soft-microprocessor for
use on Xilinx FPGAs. For more information see:
http://www.xilinx.com/tools/microblaze.htm
http://en.wikipedia.org/wiki/MicroBlaze

The current LLVM MicroBlaze backend generates assembly which can be
compiled using the an appropriate binutils assembler.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96969 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-23 19:15:24 +00:00
Kevin Enderby
6e72048add This is the first patch to put the needed bits in place to eventually allow code
to be aligned with optimal nops.  This patch does not change any functionality
and when the compiler is changed to use EmitCodeAlignment() it should also not
change the resulting output.  Once the compiler change is made and everything
looks good the next patch with the table of optimal X86 nops will be added to
WriteNopData() changing the output.  There are many FIXMEs in this patch which
will be removed when we have better target hooks (coming soon I hear).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96963 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-23 18:26:34 +00:00
Mikhail Glushenkov
a34f97ab22 Correct option forwarding: initial implementation.
Does not work, but the infrastructure changes are in place.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96920 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-23 09:04:44 +00:00
Mikhail Glushenkov
be6ee7c116 New experimental/undocumented feature: 'works_on_empty'.
For now, just enough support to make -filelist work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96918 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-23 09:04:28 +00:00
Mikhail Glushenkov
a04d4ed690 Add a way to enable '-opt=foo' forwarding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96916 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-23 09:04:13 +00:00
Chris Lattner
5ce9d0b606 fix an off-by-one error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96844 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-23 01:07:09 +00:00
Chris Lattner
5007e1e435 switch the value# in OPC_CompleteMatch and OPC_EmitNode to use a
VBR encoding for the insanity being perpetrated by the spu backend. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96843 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-23 00:59:59 +00:00
Chris Lattner
3e22f2d489 add a new Push2 opcode for targets (like cellspu) which have
ridiculously ginormous patterns and need more than one byte
of displacement for encodings.  This fixes CellSPU/fdiv.ll.
SPU is still doing something else ridiculous though.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96833 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-22 23:55:39 +00:00
Jim Grosbach
4642ad3af1 Updated version of r96634 (which was reverted due to failing 176.gcc and
126.gcc nightly tests. These failures uncovered latent bugs that machine DCE
could remove one half of a stack adjust down/up pair, causing PEI to assert.
This update fixes that, and the tests now pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96822 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-22 23:10:38 +00:00
Chris Lattner
418b568336 expand my hack to work with nodes that have flags but no chains and the
isel doesn't know the correct # results.  This fixes 8 codegen tests,
down to 22 failures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96815 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-22 22:37:11 +00:00
Chris Lattner
12a667c1e8 add a new CheckMultiOpcode opcode for checking that a node
has one of the list of acceptable opcodes for a complex 
pattern.  This fixes 4 regtest failures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96814 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-22 22:30:37 +00:00
Chris Lattner
3df577b71b add some debug hooks for tracking the behavior of the isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96812 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-22 22:15:39 +00:00
Dan Gohman
fb76fe0929 Fix various doxygen warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96779 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-22 04:10:52 +00:00
Dan Gohman
31a95c524c Rename a variable to avoid a -Wshadow warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96776 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-22 04:04:24 +00:00
Chris Lattner
74fd536158 enhance my hack for flags handling, this allows us to pass
CodeGen/X86/pr2182.ll.  Down to 13 x86 failures out of ~1100


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96770 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-22 00:47:38 +00:00
Chris Lattner
565a6f9480 fix most of the failures in the x86 suite by handling multiple
result nodes correctly.  Note that this includes a horrible hack
in DAGISelHeader which cannot be fixed reasonably without 
eliminating (parallel) from input patterns.  That, in turn,
can't be done until we support writing multiple result patterns
for the X86and_flag and related multiple-result nodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96767 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-21 23:54:05 +00:00
Daniel Dunbar
e7bd886cb8 MC: Sketch registry support for target specific assembler backends.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96762 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-21 21:53:53 +00:00
Daniel Dunbar
24b5425072 Formatting tweaks (trailing whitespace, ordering, comments).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96761 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-21 21:53:37 +00:00
Chris Lattner
502035e541 fix an odd thinko in an assertion, all arm tests pass now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96758 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-21 20:57:28 +00:00
Anton Korobeynikov
293d592bf9 It turned out that we failed to emit proper symbol stubs on non-x86/darwin for ages (we emitted a reference to a stub, but no stub was emitted). The code inside x86-32/macho target objfile lowering should actually be the generic one - move it there.
This (I really, really hope) should fix EH issues on ppc/darwin
and arm/darwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96755 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-21 20:28:15 +00:00
Chris Lattner
be94ffcf12 speculatively teach OPC_CheckValueType and OPC_EmitNode to handle
MVT::iPTR.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96753 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-21 20:15:25 +00:00
Chris Lattner
be92e6a0d2 teach OPC_CheckType to handle MVT::iPTR, down to 2 ppc failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96752 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-21 20:10:43 +00:00
Chris Lattner
1d4cb41fdd make this check a bit more generous, it may be outliving its
utility.  Down to 6 ppc failures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96751 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-21 20:02:15 +00:00
Chris Lattner
1e4b8bc93b Relax an assertion a bit. We allow replacing things like
<4 x i32> with <4 x float> values if they end up the same
register class.  This gets us up to 231 passes on the ppc
tests (only 7 fails).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96750 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-21 19:35:07 +00:00
Chris Lattner
863cc971e8 when a match fails and we have to rollback, make sure to keep 'N' in
sync with the top of stack.  This fixes a bunch of failures on larger
testcases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96732 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-21 07:55:48 +00:00
Chris Lattner
0fb65cffa6 handle optional in flags that aren't present.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96731 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-21 07:19:06 +00:00
Chris Lattner
a7399e4abf fix two bugs in OPC_EmitRegister, which makes ppc happier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96728 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-21 06:58:27 +00:00
Chris Lattner
77f2e2724d implement the last known missing feature: updating uses of results
of the matched pattern to use the newly created node results.  Onto
the "making it actually work" phase!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96724 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-21 06:03:07 +00:00